The square of 45 and square root of 21 are irrational. The square root of 64 is rational
Answer:
Step-by-step explanation:
y=x^2-12
The inverse is
√x+12, -√x+12
First, take a look at the vertical axis. Its. equation is x=0. count the number of scale divisions from the origin to the point where the line crosses the vertical axis. It's 4. Thus, the vertical intercept is (0,4).
Next, determine the x value where the line crosses the horizontal axis. It's 4, and so the horiz. intercept is (4,0).
Going from (0,4) to (4,0), x increases by 4 and y decreases by 4. Thus, the slope of the given line is m = rise / run = -4/4 = -1.
Starting with y = mx + b, substitute the knowns:
b, the y-intercept, is 4. m, the slope, is -1. Thus, the equation of this line in slope-intercept form is y = -x + 4.
Answer:
The area of the square is 85 units^2
Step-by-step explanation:
Okay, here in this question, we are interested in calculating the area of the unknown square.
Kindly note that, since each of the other shapes are squares too, it means that the length of their sides is simply the square root of their areas.
Thus, the length of the squares are ;
√35 units and √50 units respectively
Now to find the area of the larger square, we employ the use of Pythagoras’ theorem which states that the square of the hypotenuse is equal to the sum of the squares of the two other sides
Let’s call the unknown length X
x^2 = (√35)^2 + (√50)^2
x^2 = 35 + 50
x^2 = 85
x = √85 units
Now as we know that the area of a square is simply the length of the side squared,
The area of the biggest square is simply (√85)^2 = 85 units^2
Can you put instead of y =0 ;x=0,but only y or x
